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Overview
| Comment: | Do not allow recursive CTEs that use aggregate queries in the recursive part. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
6d2999afbc25b9c238e4028f637c10ea |
| User & Date: | drh 2015-07-05 22:15:10 |
Context
|
2015-07-06
| ||
| 20:27 | Speed up seek operations on fts5 b-tree structures. check-in: 7b7da1eb user: dan tags: trunk | |
| 18:54 | Enhance separate pcache1 to allocate a block of pages from heap on startup, if possible, for a 5.2% performance improvement. check-in: aa7341c8 user: drh tags: pcache-bulk-local | |
|
2015-07-05
| ||
| 22:15 | Do not allow recursive CTEs that use aggregate queries in the recursive part. check-in: 6d2999af user: drh tags: trunk | |
|
2015-07-04
| ||
| 18:44 | Optimize seek operations on fts5 b-trees. check-in: 8cf02090 user: dan tags: trunk | |
Changes
Changes to src/select.c.
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VdbeCoverage(v);
}
sqlite3VdbeResolveLabel(v, addrCont);
/* Execute the recursive SELECT taking the single row in Current as
** the value for the recursive-table. Store the results in the Queue.
*/
p->pPrior = 0;
sqlite3Select(pParse, p, &destQueue);
assert( p->pPrior==0 );
p->pPrior = pSetup;
/* Keep running the loop until the Queue is empty */
sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
sqlite3VdbeResolveLabel(v, addrBreak);
end_of_recursive_query:
sqlite3ExprListDelete(pParse->db, p->pOrderBy);
|
> > > | | | | > |
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VdbeCoverage(v);
}
sqlite3VdbeResolveLabel(v, addrCont);
/* Execute the recursive SELECT taking the single row in Current as
** the value for the recursive-table. Store the results in the Queue.
*/
if( p->selFlags & SF_Aggregate ){
sqlite3ErrorMsg(pParse, "recursive aggregate queries not supported");
}else{
p->pPrior = 0;
sqlite3Select(pParse, p, &destQueue);
assert( p->pPrior==0 );
p->pPrior = pSetup;
}
/* Keep running the loop until the Queue is empty */
sqlite3VdbeAddOp2(v, OP_Goto, 0, addrTop);
sqlite3VdbeResolveLabel(v, addrBreak);
end_of_recursive_query:
sqlite3ExprListDelete(pParse->db, p->pOrderBy);
|
Changes to test/with1.test.
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#
do_catchsql_test 15.1 {
WITH RECURSIVE
d(x) AS (VALUES(1) UNION ALL SELECT rowid+1 FROM d WHERE rowid<10)
SELECT x FROM d;
} {1 {no such column: rowid}}
finish_test
|
> | > > > > > > |
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#
do_catchsql_test 15.1 {
WITH RECURSIVE
d(x) AS (VALUES(1) UNION ALL SELECT rowid+1 FROM d WHERE rowid<10)
SELECT x FROM d;
} {1 {no such column: rowid}}
# 2015-07-05: Do not allow aggregate recursive queries
#
do_catchsql_test 16.1 {
WITH RECURSIVE
i(x) AS (VALUES(1) UNION SELECT count(*) FROM i)
SELECT * FROM i;
} {1 {recursive aggregate queries not supported}}
finish_test
|